Forgingsdhizaini saizi dhizaini uye kusarudzwa kwemaitiro kunoitwa panguva imwe chete, saka, zvinotevera mapoinzi anofanirwa kutariswa kana uchigadzira saizi yemaitiro:
(1) Tevedzera mutemo wehuwandu hunoramba huripo, ukuru hwemaitiro ekugadzira hunofanirwa kuenderana neakakosha pfungwa dzega rega rega; Mushure mekuita, vhoriyamu isati yaitwa yakaenzana nehuwandu hwehuwandu mushure mekuita. Iyo yakazara vhoriyamu inoreva huwandu hwehuwandu hwehafu-yakapedzwa zvigadzirwa zvakawanikwa nemaitiro uye huwandu hwekurasikirwa kwezvinhu kunoitika mukuita.
(2) Inofanirwa kufungidzirwa mukuita deformation yebillet dzimwe shanduko, ichisiya shrinkage yakakwana uye inishuwarenzi, kudzivirira saizi yekunze kwekushivirira, sekurova kunoderedza kureba kwakashata, kureba kwebillet kuchawedzera apo reaming.
(3) Saizi yehafu-yakapedzwa zvigadzirwa zvakawanikwa kubva kune imwe nzira inofanirwa kugonesa inotevera maitiro kuti aenderere mberi zvakanaka. Semuenzaniso, paunotanga kudhonza kwenguva refu uye wozogumbura, haugone kudhonza zvakanyanya, zvikasadaro kugumbuka kuchave kusingagoneke uye kukotama.
(4) Pakuumba zvidimbu, zvinokosha kuva nechokwadi chokuti chikamu chimwe nechimwe chine vhoriyamu yakakwana.

(5) Rinimulti-fire forging, mukana wekupisa kwepakati pemoto wepakati unofanirwa kufungwa, zvakadai sehukuru hweforging process, moto wepakati, chigadzirwa chehafu-chakapedzwa chinogona kuiswa muchoto chekupisa nezvimwe zvakadaro.
(6) Inofanirwa kusiya yakakwana yekupedzisira forgings kururamisa, kuitira kuti nzvimbo yefogi igadzikane uye yakakodzera kureba uye saizi.
(7) Kwenguva refushaft forgingsinodiwa kureba nhungamiro saizi yakarurama kwazvo, inofanira kufungidzirwa kuti urefu saizi ichawedzerwa zvishoma pakupfeka.
Musoro wekucheka huwandu hweshaft forgingsinofanira kuzadzisa zvinodiwa.